Question
On a principal of Rs. 2000, simple interest at R% per
annum for 3 years is Rs. 480. Find the simple interest on Rs. 2500 at (R + 4)% per annum for 5 years.Solution
According to question, 480 = 2000 × R% × 3 R = 480/60 = 8 Therefore, required interest = 2500 × (8 + 4)% × 5 = Rs. 1500
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